Pharm Flashcards
What is the difference between topical and transdermal drug therapy?
Topical = dermal issue Transdermal = systemic issue
What is the correct order of most to least moisturizing vehicles?
Occlusive dressing Ointment Cream Lotion Gel Spray Solution
When should a wet dressing be used?
With an oozing/weeping wound to promote evaporation
Which acne medications reduce the number of bacteria on the skin?
Benzoyl peroxide
Topical abx
Oral abx
Which acne medications reduce sebum production or presence?
Benzoyl peroxide
Isotretinoin
Which acne medications increase cell turnover?
Benzoyl peroxide
Tretinoin
Adalapene
Salicylic acid
What is a low concentration of salicylic acid used for?
Abnormal keratinization i.e. corns
What is a medium concentration of salicylic acid used for?
Skin peeling
What is a high concentration of salicylic acid used for?
Caustic effects i.e. plantar warts
What is the MOA of finasteride?
Inhibits conversion of testosterone to dihydrotestosterone (DHT)
What is the MOA of minoxidil?
Stimulates follicles, follicular cycling, and VEGF
What is the MOA of eflronithine?
Inhibits enzyme responsible for hair cell division
What size tube should be prescribed BID x1 week for lesions of the head and neck or one arm or hands and feet?
15gm
What size tube should be prescribed TID x2 weeks for lesions of the head and neck or one arm or hands and feet?
30gm
What size tube should be prescribed BID x4 weeks for lesions of the head and neck or one arm or hands and feet?
45gm
What size tube should be prescribed BID x1 week for lesions of the trunk?
80gm
What size tube should be prescribed TID x2 weeks for lesions of the trunk?
160gm
What size tube should be prescribed BID x4 weeks for lesions of the trunk?
240gm
What size tube should be prescribed BID x1 week for lesions of one leg?
30gm
What size tube should be prescribed TID x2 weeks for lesions of one leg?
90gm
What size tube should be prescribed BID x4 weeks for lesions of one leg?
120gm
What size tube should be prescribed BID x1 week for lesions of the body?
180gm
What size tube should be prescribed TID x2 weeks for lesions of the body?
454gm
What size tube should be prescribed BID x4 weeks for lesions of the body?
454gm
What factors are decreased in elderly skin?
Blood flow
Sebaceous glands
Sweat glands
What do these decreased factors lead to?
Thin and damaged skin w/increased risk for systemic absorption of topical agents leading to toxicity
What are the ASEs of topical corticosteroids?
Skin atrophy
Telangiectasia
Striae
When are topical corticosteroids CI?
Skin breaks/infections
What drugs are considered miscellaneous topical antipruritics?
Pramoxine
Diphenhydramine
Doxepin
What are the ASEs of pramoxine?
Burning
Rash
What formulation of diphenhydramine should be used?
PO
Is pramoxine available OTC or Rx only?
OTC
What formulation of doxepin should be used?
Cream
Is doxepine available OTC or Rx only?
Rx only
What is the ASE of azelaic acid?
Lightens skin
What are the ASEs of benzoyl peroxide?
Drying
Bleaches clothing
What are the ASEs of tretinoin?
Skin irritation
Photosensitivity
What are the additional ASEs of isotretinoin?
Depression
Teratogenicity, CI pregnancy
What is the benefit of adalapene?
Less skin irritation than tretinoin
What is calcipotriene used for?
1st line tx psoriasis
When should calcipotriene be taken?
AM
What are the ASEs of calcipotriene?
Hypercalcemia
What is tazarotene used for?
Psoriasis
When should tazarotene be taken?
PM
What are the ASEs of tazarotene?
Skin irritation
Teratogenicity, CI pregnancy
What is coal tar used for?
Psoriasis
What are the ASEs of coal tar?
Smell
Staining
What is a benefit of coal tar?
Cheap
What must be done to coal tar prior to use?
Dilution
What is acitretin used for?
Severe psoriasis refractory to treatment
What is the ASE of acitretin?
Teratogenicity, CI pregnancy within 3 years
What is etanercept used for?
Psoriatic arthritis
What are the disadvantages of etanercept?
Systemic
Expensive
What are the ASEs of finasteride?
Sexual dysfunction Gynecomastia Testicular pain Depression Teratogenicity, CI pregnancy
What are the benefits of minoxidil?
Shorter duration of tx
Less ASEs: contact dermatitis only
What are the disadvantages of eflornithine?
Expensive
Rx only
3rd line tx s/p OCPs/spironolactone
What are the ASEs of podophyllotoxin resin?
Necrosis
Ulceration
Chemical burns (cervix and vagina)
What are the benefits of podophyllotoxin?
Self application
What is permethrin used for?
1st line tx lice and scabies
What is ivermectin used for?
Lice >6mo
What are the benefits to ivermectin?
One time application
PO formulation
What is spinosad used for?
Lice >6mo
What is lindane used for?
Lice and scabies >2yo
What is the ASE of lindane limiting its use?
CNS toxicity
What is malathion used for?
Lice >6yo
What is crotamiton used for?
2nd line tx scabies
What organisms does bacitracin cover?
Gram positive
What organisms do gentamicin, neomycin, and polymyxin B cover?
Gram negative
What is the ASE of neomycin?
Increased skin irritation
What is silver sulfadiazene used for?
Burns
What is erythromycin/clarithromycin used for?
Acne
What is mupirocin used for?
Impetigo d/t MRSA
What are the available formulations of nystatin?
Suspension
Cream
Ointment
What is nystatin used for?
Candidiasis
What are the available formulations of clotrimazole?
Powder
Cream
What is clotrimazole used for?
Tinea versicolor
What are the available formulations of terbinafine?
Powder
Cream
Oral
What is terbinafine used for?
Tinea pedis
Onychomycosis